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Proceedings Paper

Photorefractive spatial light modulator using anisotropic self-diffraction in BaTiO3
Author(s): Ching-Cherng Sun; Bor Wang; Jenq-Yang Chang
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Paper Abstract

We demonstrate a photorefractive incoherent-to-coherent optical converter using anisotropic self-diffraction (ASD) in BaTiO3. Only two writing beams are required in the spatial light modulator and no extra readout beam is required. The diffraction efficiency reaches 50 percent. The resolution diffracted image is 22.6 lp/mm with a 6.6 by 6.6 by 7 mm crystal. We can increase the resolution by using a thin crystal without expense of the diffraction efficiency because of the inherent high diffraction efficiency of ASD in BaTiO3.

Paper Details

Date Published: 9 October 1998
PDF: 6 pages
Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); doi: 10.1117/12.326853
Show Author Affiliations
Ching-Cherng Sun, National Central Univ. (Taiwan)
Bor Wang, National Central Univ. (Taiwan)
Jenq-Yang Chang, National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 3470:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV
Francis T. S. Yu; Shizhuo Yin, Editor(s)

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